Pick, drill, and the like.



w. j. MUNDY.

PICK, DRILL, AND THE LIKE.

APPLICA'HON FILED JAN- 26. 1915.

Patented Nov. 2, 1915.

2 SHEETSSHEET lu lll m I A vV/Aw wi/bnaoom JPM COLUMBIA PLANOGRAPH cq,.\v/\sH|NGTON, D. :4

W. J. MUNDY.

Y PICK, DRILL, AND THE-LIKE.

APPLICATION FILED JAN-26. 191s.

1,159,326. Pa tent'ed Nov. 2, 1915.

WILJLAIAM J; M Nns or SHENANDOAIH, IENNSYLVANIA, ASSIGNOR or answered {JOHN W. BRESLINAND 'onn-trnmnro JAMES IJ. BRESLIN, BOTH or SHENANDOAH,

- PENNSYLVANIA. A;

PICK, DRiLL, AND THE .IiIKE. 1

To'all whom it may concern Be-it known that I,\VILLIAM J. MUNDY, a-

- citizen-of the. United States, residing at Shenandoah, inthe county: of Schuylkill and State of Pennsylvania, have invented certain new and useful :Improvements in J Picks, Drills, and the like; and I do declare the following to be a full, clear, and'exact of the invention, such as will skilled in the art to whichlit appertains, to make and use the same,freferv ence'being had to the accompanying draw description enable others ings, and to the letters and figures of reference marked thereon, which form a part of this specification. a p

'1 Thisinvention relates to picks, drillsand the like and has for its object to provide a novel construction for rcmovably securing pick points, drill points, and the like to tools and implementsjof' this character, in such manner that'points of different and varying shapes and contours can'be quickly applied.

and secured to implements of this class for different kinds of work, which points can be quickly removed from the implement.

\Vith these objects in view the invention consists in the novel construction and arrangement of parts for effecting the quick and ready application and retention of the points to the implements, quick and ready disengagement of the point from the implement without scarring and injuring either the implements or the points, or in any way aifecting their use and durability.

The invention further consists in certain details of construction and combinations of parts, all of which will be first fully described and after which specifically pointed out in the appended claim.

Referring to the accompanying drawings Figure l is an elevation of a pick constructed in accordance with this invention, the handle thereof being broken away. Fig. 2 is an enlarged fragmentary view of one end of the pick. Fig. 3 is a vertical transverse sectional View taken on line 33 of Fig. 2.

Fig. 4 is a longitudinal sectional view of Fig. 5.

and for effecting obstruction and to interfere with the illustrating Specification of Letters Patent. I Pat nted No 2 19 15 i Application filed January 26, 1915- I SerialNo. 4,456. 1

transverse sectional View taken on line 7-7 .Like numerals of. reference indicate thesame parts throughout the'seve'ral figuresin which -1 indicates a pick having the removable points 2 which'maybe'of any form or contour asmay be required for the, work tobe. accornphshed. The shank or body 1 of the: plckls faced off at .3 at each end and is'pros 'vided with-atapered, recess lat/each end to receive a tapered h1g5 formed one the pick point2, the saidpick point Zbeing faced at 6 to conform tothe faced end 3 of-the pick shankorbodyl. 5

Slidably arranged in the pick shank or body 1 and transversely thereofis what I term a staple '7 which is'of suitable material and sufficiently .heavy and rigid to perform the functionsfor which it is intended, the

said staple7'being provided with a head 8 which lies wlthin a transverse hole 9 through the shank or body 1 of the pick. Associated with said'staple'? are-two transverseholes or .bores 10 and 11, either of which is adapted toreceive thetapered short end 12.0f the staple as will be hereinafter described.--

Referring now to Figs. 3 and 4 it will be seen that the tapered lug 5' of the pointQ is provided with a transverse and tapered opening or bore 13, which is adapted to register with the transverse opening or bore 10 in-the pick shank or body 1', while it will be seen particularly from Figs. 2 and 4 that the extreme inner end of the tapered lug 5 of the pick 2 extends within the transverse bore'or openingll'in the shank or body'l of the pick, and it will be seen from the accompanying drawing particularly from Figs. 3 and l'that a slight recess 14 is provided in the shank or body 1 of the pick, so that the staple 7 whenin operative position as shown in Fig. 3 will not extend beyond the normal side of thepick shank or body to present an P p l action of the pick.

The foregoing descrlption is equally applicable to Figs. 5, 6 and 7 which illustrates a drill shank and its point, and the foregoing numerals of reference have been applied to said Figs... 5, 6 and 7 as applying to the parts thereon agreeing with the parts of the pick, just described.

In operation the staple 7 is withdrawn or V driven into open position shown in dotted lines in Fig. 3. The pick point is inserted With its taperedlug 5 within the tapered recess 4 in the end of the pickshank or body 1. The staple 7 is then turned until its short tapered end 12 is in line with they transverse perforation 10 in the pick shank or body 1 and is driven into said transverse perforation 10, which operation causes it to pass through the tapered opening 13 in the tapered lug 5 of the pick point, in the manner as is shown in Fig. 3. By this arrangement the pick point is rigidly held in engagement with the pick shank or body 1 and cannot become accidentally disengaged so long as the said staple 7 is in positionshown in full lines in Fig. 3,. while there is no projection or obstruction-to the perfect action of the pick in its operation. VVhen' it .is desired to remove the pick or drill point the staple 7 is driven outwardly into position shown in dotted lines in Fig.3 and is turned so that its short tapered end 12 enters the transverse hole or opening 11 in the'pickshank or body 1 and is then drivenv This operation causes the.

into said opening. v short tapered end'12. of the staple 7' to engage the extremeibottom end of the tapered lug 5 of the pick or drill point 2,. and as said.

staple 7 driven inwardly and into position shown in Fig. 4 the said tapered lug 5 on. the point2 is forced out of the tapered recess 4 in the shank or body 1.0f the pick or drill, so that the said point 2 can be removed by hand without any hammering or other force, which would be necessary to drive or otherwise disengage the tapered lug 5 fromthe tapered recess 4.

By this construction and arrangement of parts it will be seen that by a very simple and inexpensive construction I provide a means for securing, fastening and holding a pick or drill pointin its proper position and at the same time provide a simple and an efficient means for quickly disengaging and removing a pick or drill point from its shank or body.

Having thus fully described the invention what I claim as new and desire to secure by Letters Patent of the United States is- An implement of the character described comprising a shank or body, a removable point; said shank or body being provided with a tapered recess: in its end, said point being provided with a tapered lug to enter said tapered recess,. a fastening means on said shank or body, said shank or body and said lug on said point being provided with transverse registering openings to receive said fastening means to hold said tapered lug within. said tapered recess, the said shank or body being provided witha transverse opening at the bottom of said tapered lug on said point to receive said fastening means,v said fastening means being adapted to engage said tapered lug, at the bottom thereof to disengagev the same from said tapered recess, substantially as described.

In testimony whereof; I affix my signature, in presence of two Witnesses.

MICHAEL MCLAIN, PETER MUNDY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, D; C. v 

